CSHARP-4303: Exclude create events from change stream events when testing showExpandedEvents (#886)

Author: BorisDog

tests/MongoDB.Driver.Tests/Specifications/change-streams/tests/unified/change-streams-showExpandedEvents.json

@@ -8,7 +8,8 @@
         "replicaset",
         "sharded-replicaset",
         "sharded"
-      ]
+      ],
+      "serverless": "forbid"
     }
   ],
   "createEntities": [
@@ -275,7 +276,15 @@
           "name": "createChangeStream",
           "object": "collection0",
           "arguments": {
-            "pipeline": [],
+            "pipeline": [
+              {
+                "$match": {
+                  "operationType": {
+                    "$ne": "create"
+                  }
+                }
+              }
+            ],
             "showExpandedEvents": true
           },
           "saveResultAsEntity": "changeStream0"

tests/MongoDB.Driver.Tests/Specifications/change-streams/tests/unified/change-streams-showExpandedEvents.yml

@@ -3,6 +3,7 @@ schemaVersion: "1.7"
 runOnRequirements:
   - minServerVersion: "6.0.0"
     topologies: [ replicaset, sharded-replicaset, sharded ]
+    serverless: forbid
 createEntities:
   - client:
       id: &client0 client0
@@ -160,7 +161,15 @@ tests:
       - name: createChangeStream
         object: *collection0
         arguments:
-          pipeline: []
+          pipeline:
+            # On sharded clusters, the create command run when loading initial
+            # data sometimes is still reported in the change stream. To avoid
+            # this, we exclude the create command when creating the change
+            # stream, but specifically don't exclude other events to still catch
+            # driver errors.
+            - $match:
+                operationType:
+                  $ne: create
           showExpandedEvents: true
         saveResultAsEntity: &changeStream0 changeStream0
       - name: createIndex